Wall Insulation in North York, Ontario
Dense-pack and injection insulation for existing walls, and full cavity systems during renovation — warmer rooms, lower bills and noticeably quieter interiors.
The local picture
Walls in North York's post-war housing were built with shallow cavities and, in many cases, nothing in them at all. Dense-pack injection through small patched openings is the practical route, and it noticeably evens out the rooms on the exposed side.
Post-war bungalows and side-splits, with large 1950s–70s subdivisions
Service details
How the job runs
Cavity assessment
We confirm what is inside the wall before drilling anything.
Access openings
Small, regularly spaced openings made where they can be cleanly patched.
Dense-pack fill
Material injected under pressure so it fills the cavity without voids or settling.
Patch and clean
Openings closed and the site left ready for paint or siding.
What we see in these homes
- Original attic insulation that has settled to a fraction of today's R-60
- Additions and second-storey conversions with unsealed transitions to the original roof
- Side-split levels that hold completely different temperatures
- Bathroom fans venting into the attic instead of outside
Typical ranges
Existing walls are insulated by injection through small openings; new or opened walls are filled conventionally. Indicative market ranges below — cavity depth and wall construction decide what is actually possible.
Wall Insulation Cost in Toronto & the GTAQuestions about this service
Do you have to open my walls?
Not fully. Dense-pack goes in through small openings that are patched afterwards.
Will it help with noise?
Yes — dense-pack in particular makes a clear difference on interior and street noise.
Can this be done in winter?
Yes, though exterior access work is easier and cleaner in milder weather.